Beyond and above.

So, today I tried to push the envelope a bit:
1. I did all cutting and pressing first, before gluing the foil.
2. Reinforced edges with duct tape.
3. Added sewn tabs to make joints stronger.
4 Used baking foil instead of (missing) glass lid.
and it worked!











link to original (detailed) steps and instructions?
  últim editat: Wed, 15 Aug 2018 08:12:31 +0300  
Attached and here:

When the duct tape is not enough...

We all know that the duct tape is the mainstay of alternative technologies. Solar cookers are not an exception. But here on Samos, with temperatures over 30*C, the glue on the tape just melts and flows. Thick cardboard does not stay together under tension and the whole construction goes apart in seams.
So today I started experimenting with reinforced joints for cardboard. Just look.



Solar Roasted Eggplants!

Who needs black pot, if one has black food? Solar Roasted Eggplants!
Our first solar cooker on Samos, built with our friends here within two hours.




More pics:
How cool it is!

As a first product for sustainable living at the edge of extinction, I am testing the Zeer pot cooler (with some modifications). Spending 55 Euros I put together some readily available components and half an hour ago flooded it with 18 liters of water.

Immediately the faults of constructions showed. I am going to let it sit a while, as I still want to check the cooling effect. Meanwhile I will think over what I did wrong.

Single point of failure.

This plug is the weak point. It is not only blocking the hole (which it should do with no problem  whatsoever, with a little help of hot glue. Also, being overenthusiastic, I made it the anchor point for the inner bucket. Inner bucket is essentially floating in the water and has to be anchored so it doesn't pop out.
So I put a screw in the cork plug from inside and tied a folded piece of rope to it. Then I connected both ends via zip-ties to the inner bucket fixtures.
In effect I now have a water dripping from the bottom and the bucket visibly struggles to lift, which looks awkward.
It may be good enough for the proof of concept, but not good enough for sales. So I will leave the cooler for a day or two, to see if it is going to work at all and meanwhile will try to solve the anchoring problem.
What is the purpose of this? to have a "fridge" ? if so, it is recommended it stays under the earth... also it should be covered with clay on the top....
  últim editat: Sun, 12 Aug 2018 22:03:46 +0300  
The cooler rather than a fridge, but yes. We do not have a refrigerator and living on Samos is rather inconvenient without it.
The fridge (adsorbtion, closed loop) is planned for the third stage.This is more to implement the idea of wet-bulb temperature point, which is theoretical extreme for evaporate cooling.
Also, if done nicely, it makes a good conversation topic.

Unfortunately, the pot proved to be watertight, so no evaporation. We will use it otherwise and talk to local potteries about doing something more suitable.

Putting it underground uses different principle and is possible only if you have a ground you can dig into (we do not), so it is a slightly different "target".
Official start of our liberatory technology activity on the island of Samos.

Yesterday we deployed  temporary woodworking unit in an olive grove.




Today we started our first construction: lashed bamboo frame for bicycle trailer.



Tomorrow? Come and help make it happen...
Petros PolonosPetros Polonos va escriure el següent entrada Sun, 29 Jul 2018 22:06:29 +0300
Community Supported Manufacturing -- capitalism-free production sector
This is an abridged version of the full text, that is available here
For one-page abstract see the picture.


Community Supported Manufacturing for Solidarity Economy
Abridged version (PDF available here)

This is not a neutral text. This is a case for certain world-in-creation, written from a perspective of technology-involved person, seeing infrastructure and manufacturing as life support systems for communities – both in practical and in political sense.
You have been warned.

Why manufacturing matters

People in economy are busy with three types of activity:
-- Extracting raw materials from the environment (including food production).
-- Converting these materials into more complex, tangible products (manufacturing).
-- Performing work that creates intangible products (services).

Manufacturing, known in this perspective as secondary sector, is the mainstay of every human culture. Manufactured items – including tools, constructions, processed or preserved food – are generally considered as specific for humanity.
The essence, however, is the fact that manufacturing relies on systematic, replicable procedures, based on experience and technological knowledge.
Instead of one-off artisan products, manufacturing provides items that are standardized and their specification is known before they are made.
It makes the whole process of social planning and cooperation whole lot easier.

World around us

Currently the dominant ideology across planet is capitalism. Capitalism is built around greed, the drive to concentrate wealth and power. Economy, governance, ecology and technology – all elements are orchestrated to increase concentration of resources within a narrowing group of owners. Manufacturing sector is a part of it.

If we want to create capitalism-free world, we need to replace capitalist mechanisms with new ones, based on solidarity and responsibility for others.

The world we create

It is not about living off-grid. It is about living off-greed.

The world we create is built around sustainability and resilience for all. That makes ecology (including humans) the hub of our model. Assuming position of stewardship, community claims no rights to the environment – rather obligations, coming from responsibility for its elements. It boils down to the need to discover our role in global ecosystem and start fulfilling it to our best abilities.

We believe that heterogeneous communities, organized in a horizontal, peer-to-peer network (confederacy) are the best framework for socially-based survival of humanity.
We strive to model and build communities that do not crush individuals. Community should work as an interface between them, helping them both contribute and benefit, with as little need for adjustment as possible.

Inter-community communication, cooperation and coexistence, require confederated peer-to-peer network, guided by mutually agreed protocol.

We believe that for capitalism-free and self-organized communities, the best economic model is solidarity economy. On microeconomic level (inside community) it assumes the goal to fulfill people’s needs in the most equal way possible, within available resources.
Availability of resources is limited by their sustainability and the level of outcome is limited by the needs of resilience (maintenance and strategic reserves).

On the macro level (among communities) at least part of economic surplus should be allocated according to solidarity criteria, thus improving equity and the spirit of mutual aid between communities.

Whatever self-governance system people adopt, it has to support main values of the society: sustainability, resilience, self-determination and self-governance.

Capitalism-free manufacturing.

Changing the leading axiom of ideology makes everything work differently. In newly created world, also manufacturing sector becomes new, made of quite different components.
Technology is specialized knowledge how to use tools on components to create product and (possibly minimal) waste.

Liberatory technology is not only supporting the goals of sustainability and resilience. It also supports human self-determination and self-organization. Liberatory technology also aims at closing the gap between people and technology, making everyone involved in infrastructural processes. The challenge is to balance unavoidable conservatism of “consumer” communities against much needed innovation drive, present in makers’ and tinkerers’ tradition.

Capitalist investment decisions are driven by promised financial profit. In our world, investments are driven by mutual aid principle and decided through affinity process.

There is a community that needs some products, but lacks skills or other conditions to make them. And there is another community that is able to make them, but lacks seed funds, or just sheer work-power.

So, pretty much similar to Community Supported Agriculture, one or more "receiving" communities may support the manufacturing one and all of them benefit from the outcome.

It is worth stressing out that this kind of support does not mean creating any fixed dependence. Scrutiny from supporting community is temporary and ends when the conditions for it are met (mostly when the loan is paid). There is no change of ownership regarding resources (we are strongly against ownership as a method of control), no new institution is created.
The whole process is affinity based and only essential elements will be put in contractual form (and published for public control).

The freemium economic model we advocate assumes that every product should be available in several forms, some of them should be free, some moderately paid and some sold at a premium price. Premium forms of products would provide sustenance for people involved in manufacturing and funding for free and cheap versions.

In this context, community supported manufacturing would mean that a community assumes role of “premium customer”, providing resources to create and distribute product available for everyone. This is, we believe, solidarity economy as it should be.

Practical program (as publication date).
CIRCo is a tech-oriented community (in the making). Our goal is to live and work together, in a form of cooperative, creating technical solutions for various “alternative” communities.

Over next three years we want to create a community oriented, fablab-style technical center and build a community around it. CSM for us is the way to keep our work connected to real needs of communities and to obtain resources to expand our technical base.

So, the plan is (as soon as we find a location):
1. To establish first technical section: woodworking. We have 80% of equipment needed to build simple wooden “kit-able” constructions, like bike trailers, wind turbines,
2. We will immediately start inviting more people to join our team, mostly as visiting makers and instructors (1-3 months). The plan is to have 6-10 people in the location, some of them gradually becoming permanent residents.
3. We will start fund-raising campaign to expand the equipment base: advanced woodworking, basic metalworking, mechanical, electrical and electronic sections – and others, as new needs emerge.

At this moment (hopefully around October 2018) we will be able to start accepting CSM contracts.

Open invitation

For individuals: if you like ideas laid out in this document, talk to us. We will be happy to work with you remotely, to host you for a while and finally, perhaps, to welcome you as a long-term community member. Talk to us!

For communities: if you wish to participate in building manufacturing sector for solidarity economy, talk to us too. We will start from discussing, what products you need and how we can make them for you. Decisions take time, so let’s start early.

Our contact details
IRC:, channel #circoop
...or just comment here
!Community Supported Manufacturing
Going Postal, or The Postman Always Shoot Twice.

!hubzilla forum advertisements
For those who need better interaction or #bridging between #Hubzilla and #email #communication channels (both individual and via mailing lists) we start an initiative to develop a mailing #plugin. Come and see:
The Flying Inn, Mark I

I started building a network node that we will be able to take with us, wherever we need to go, having our data more or less securely stored, our own small wifi and some services running on RasPi Zero server.
Today I put together the first part -- power subsystem.
Components to acquire:
-- 5 or 12 V fan
-- Second battery
-- short cable mini/micro USB
-- mounting bolts for RasPi Zero
...and we are done.




#network #portable #hardware #CNI Data
How to add mail-only contact?

!Hubzilla Support Forum
cc: @Sheltered Side
I searched this forum, development forum, wiki and documentation and could not find a recipe how to add a connection using e-mail only.
The goal is of course to reach people who are not interested in setting up any kind of account, but still they wish to participate via sort of a mailing list interface. It is also for personal email contacts, so I could get rid of some less secure mail channels.

I remember there was a procedure for that in Friendica and I am pretty sure I read at least a mention of it for Hubzilla. But now I just cannot find anything...
Folks, the person that is going to coordinate it from our side is @Abaramotorai and the AnarchoTech for people . He joined our group in developer capacity. Thank you for your encouragement.  We will probably open a channel to manage the process and we will surely invite you there.
As soon as we finish with wind turbine monitoring unit, we go ahead with this problem.
So, here it is. Unless I messed up the contact/privacy settings (still my intuition needs re-training), you should be able to join.

Welcome to GOING POSTAL.
Yes, I'm doing exactly that. I'm putting the pieces together so I can deliver some sort of answer this week for connecting the turbine info with a web server and than create our page with this specifications. I'm totally with my hands on this this week.

Thank you stonehead!
Harper PollockHarper Pollock va escriure el següent entrada Fri, 11 May 2018 08:49:08 +0300
New CNI channel & call for curators!
We are also looking for people who want to help finding good sources of high quality inspirations and put some time into re-publishing content with meaningful comments. Such contribution would be highly appreciated and help us take the "CNI Coop Social center" off the ground.

The goal is to create information channels  covering the topics under broad definition of "Liberatory technology" — technology cultivated and implemented to empower self-organised communities.

We can define them as we wish. We have our own server, with installed Hubzilla (federated social network software) and full administrative control. The crucial thing is to get people on board, who'd take care of selectng quality (real, meaningful and practically oriented) content, put some intelligent introduction, hashtags and publish.

We want to make it a popular source among federated networks and bring more people both to the topic of technology as a tool for grassroot political change and to support CNI efforts in this area.

Talk to us, if you are interested. Share anyway.

#Grassroots #Technology #content

#Liberatory #Technology #libtech
Harper PollockHarper Pollock va escriure el següent entrada Fri, 11 May 2018 08:44:29 +0300
New CNI channel!
So, we start a new information channel. "Low & Appropriate Trusted TEchnology" aka L.A.T.TE feed.
It has three goals:
— to create a place where hand-picked and curated low-tech solutions will be presented, commented and discussed, outside of corporate media cage;
— to bring more people to our #Hubzilla instance and eventually get them involved in our projects;
— to increase visibility of our (micro)donation system, soon to be implemented online.
You can see the channel here:, subscribe to RSS here: or reach out across federated social media to add us:

Email connector soon!

#low-tech #lowtech #Appropriate #Technology
Metabolizer your trash!

This guy is really good. Sam Smith is in the middle of creating a bio-mimicking technological metabolizer -- a system to convert typical American household stream of waste into some useful resources (including fuel for metabolizer itself). He got into semi-finals of Hackaday's Open Hardware Challenge and has good chance for the main prize. Look at it!
YT Video


#Recycling #Appropriate #tech #SamSmith
Charger/controller for wind turbine generator

!Community Network Infrastructure Cooperative
I am looking for a source to buy (or order custom made) a charger/controller for wind electricity generator. Input up to 150 V DC, output 24 V DC. Power up to 1000 Watt. For now I need to get one, for prototyping needs, later about 10 per batch. Can you help me, please?

*** EU only! *** (or not, if you can help with importing it)
Profile image upload fails consistently

!Hubzilla Support Forum
When I try to change my profile ( image, it consistently fails to upload new picture. "Image upload failed" -- and that's it. There is probably more diagnostics available, but I do not know where to look for it.

Docker installation.

Ingo: See attached (no).




Galette: Where can I check it? Also, intial image uploaded finely.
Well, my idea was that the image that you want to upload exceeds some 2 MB upload limit. But those images doesn't appear to be large enough.
Profile photos and Cover photos are the last remaining file uploads that are subject to PHP upload limits. You can upload into the editor or into your cloud storage without encountering these limits, but for these two activities,
check the php.ini for your webserver (you may have more than one php.ini) and review and possibly adjust


post_max_size needs to be larger than upload_max_size

If an upload results in a white screen (this can happen for some newer cellphone images if your server is in a memory starved environment) install the imagick program for your operating system. There is a place on the admin/site page to provide the path for externally generating stage1 thumbnails (usually /usr/bin/convert) rather than attempting to generate them in memory. You still want to give PHP as much memory as you can get away with, because this can affect your ability to export/backup/clone your channel content.
RSS is not recognised.

!Hubzilla Support Forum

Following the method given in FAQ, I was trying to add as a connection to one of our channels ( However answer was "Remote channel or protocol unavailable.", both for explicit feed address and for standard URL.
Any suggestions?
I'm able to add the feed as a contact
Have you enabled admin->site->Allow Feeds as Connections ?

tip: create a channel "CNI" and then add the contact
It was the admin thing, thank you.
Let's get to it.

!Community Network Infrastructure Cooperative
Our infrastructure (Hubzilla) is still in configuration, but we can start publishing now. As configuration advances, we will be moving communications channels here and retroactively publish previous content.

Sturdy Stonehead updated their profile photo